pupil

(pu’pil) (LL. papilla girl]. The opening at the center of the iris of the eye for the transmi ion of light. Argyll-Robertson p., one which is miotic and which responds to accommodation effort, but not to light. artificial p., one made by iridectomy. B e’s p., dilatation of the pupil following a psychic stimulus. It does not occur in dementia priccox. cat's-eye a i one with a narrow vertical aperture. Hutec son’ 8 Pp., one dilated upon one side. keyhole + ap upil with a,coloboma on one side of the Pirgin’ kew’s p's, a condition in which one of the visual axes is deviated upward and the other downward. pin-hole p., one which is extremely contracted. stiff p., Argyll Robertson pupil.